How is a sample defined in terms of its composition?

A sample, in the context of soils and aggregates, is defined as one or more increments of equal size that are combined to represent a larger volume or bulk material. This method ensures consistency and uniformity in the sampling process, which is crucial for accurate testing and analysis. By using increments of equal size, the sample becomes more representative of the overall material being examined, allowing for reliable comparisons and assessments during quality control procedures.

The practice of combining equal-sized increments helps minimize bias and variability that could arise from using increments of differing sizes. When the increments are consistent, it enhances the validity of the results obtained from tests performed on the sample. This approach is crucial in ensuring that any conclusions drawn about the material's properties, quality, or compliance with specifications are based on a robust and reliable sample representation.